METHOD AND DEVICE FOR CONTROL AND/OR OBSERVATION OF PNEUMATIC DRIVE Russian patent published in 2018 - IPC G05B23/02 F16K31/12 F16K37/00 

FIELD: machine engineering.

SUBSTANCE: device comprises a housing; a processor located within the housing for executing the control application; a position sensor located inside the housing to control position of the valve connected to the pneumatic drive. The position sensor provides control application with information on valve position valve, and a bistable valve located inside the housing for providing said pneumatic drive with pneumatic signal by means of pneumatic energy source provided for the biostable valve. The bistable valve is controlled by the control application based on position information or control signal from a separate device in the process control system to provide said pneumatic drive with pneumatic signal and release bistable valve in response to pneumatic exhaust discharged from the bistable valve.

EFFECT: possibility of complete control and local control of the valve.

24 cl, 16 dwg